CN111391464A - Processing method and processing equipment for inorganic cementing material plate - Google Patents

Abstract

The invention discloses a processing method and processing equipment of an inorganic cementing material plate. The processing method comprises the steps of firstly injecting a layer of slurry into a template, then pre-pressing and shaping the slurry, and finally hot-pressing and shaping the pre-pressed and shaped plate. The processing method improves the strength of the plate and the stability of the internal structure, and does not need to lay a reinforcing material layer; the density of the processed plate is uniform, the deformation and internal air holes of the plate are reduced, and the edge of the plate is not easy to damage; the plate is of a single-layer structure, so that the processing steps are simplified, and the processing period is shortened; the hot press molding can effectively reduce the water content of the plate, so that the plate is more widely applied; the production cost is reduced, and the labor is saved. The panel processing equipment contains stone unit, pre-compaction unit and hot pressing unit, wherein, the stone unit contains a set of charge door, hot pressing unit contains hot plate, limit for height piece and storage rack. The plate processing equipment can process a plurality of plates simultaneously, and the processing efficiency is improved.

Description

Processing method and processing equipment for inorganic cementing material plate

Technical Field

The invention relates to a processing method and processing equipment for an inorganic cementing material plate, in particular to a processing method and processing equipment for a hot-press formed inorganic cementing material plate with a single-layer structure.

Background

Firstly, the traditional glass magnesium board is divided into a 3-layer structure, comprising a surface layer, a middle material layer and a sanding layer, wherein 1-2 layers of reinforcing materials (common glass fiber mesh cloth, namely plain woven cloth and interwoven cloth) are respectively arranged between the surface layer and the middle material layer, between the middle material layer and between the surface layer and the sanding layer, so that the processing method at least relates to 3 kinds of sizing agents, the method is tedious and has multiple steps, and the inherent quality of the product can be influenced when errors occur in each step. Secondly, the wet densities of the 3 sizing agents are different, so that the finished product of the glass magnesium board after curing is deformed, and the external quality of the product is influenced. Thirdly, the semi-finished product processed by the wet processing method has high moisture content, so that the later dehydration is difficult, the period is long, and the semi-finished product is difficult to apply to the field of hot sticking. Finally, production lines have more personnel and higher raw material cost, and particularly, reinforcing materials cause higher production cost.

Disclosure of Invention

The purpose of the invention is as follows: the first purpose of the present invention is to provide a method for processing inorganic cementitious material sheets, and the second purpose is to provide a processing device for inorganic cementitious material sheets, so as to overcome the problems in the prior art. In particular, the processing method provided by the invention can be suitable for processing inorganic gel material plates (for example, by directly mixing reinforcing material powder into slurry) without laying a reinforcing material layer.

The technical scheme is as follows: the processing method of the inorganic cementing material plate comprises the following steps:

(1) spreading materials: a layer of slurry is injected into the template;

(2) pre-pressing: pre-pressing and shaping the slurry filled in the step (1);

(3) hot pressing: and (3) hot-press forming the plate pre-pressed and shaped in the step (2).

The slurry can reach the required strength without laying reinforced material layers such as glass fiber mesh cloth and the like, simplifies the processing steps and shortens the processing period.

The hot pressing process is carried out through a hydraulic driving hot pressing unit, and a plurality of plates are simultaneously processed in a superposition mode, so that the plate processing efficiency is improved, and the energy consumption is reduced. Through the hot pressing process, the water content of the plate can be effectively reduced, so that the plate is widely applied. In addition, the whole machining process can adopt an automatic assembly line, the machining efficiency is high, and the labor cost is reduced.

Preferably, the hot pressing temperature in the step (2) is 45-85 ℃, and the hot pressing time is 3-5 minutes.

The hot pressing parameters can be adjusted by the ordinary skilled in the art according to the type of the slurry for processing the plates, the thickness of the plates and the number of the plates simultaneously stacked, and the plates can reach the required strength and quality.

Preferably, step (1) processes up to 15 sheets simultaneously.

Preferably, the ratio of the paving thickness of the step (2) to the plate forming thickness of the step (3) is 1.25: 1-1.45: 1.

if the ratio of the paving thickness to the plate forming thickness is too low, the plate has lower strength and too thin thickness; if the ratio of the paving thickness to the plate forming thickness is too high, the stress of the plate in the hot pressing process is too large, the thickness of the plate is too thick, and a stable structure cannot be formed inside the plate or the plate is easy to break.

Preferably, the step (1) is filled with slurry formed by inorganic material powder; further preferably, the slurry is formed by a magnesium/calcium gelling material, and the water content of the slurry is not more than 60%.

Preferably, in the step (2), a compression roller is adopted to pre-press and shape the slurry injected in the step (1).

The adoption of the compression roller for pre-pressing the slurry can ensure that the slurry distribution is initially even, the bubbles in the slurry are removed through extrusion, and the pores in the slurry are initially compressed, so that the stress of the plate is even in the subsequent hot-pressing process, a stable internal structure is formed, and the edge of the plate can not be damaged by subsequent slotting.

The processing equipment of the inorganic cementing material plate comprises a paving unit, a prepressing unit and a hot pressing unit, wherein the paving unit comprises a group of charging openings, the hot pressing unit comprises a hot plate, height limiting blocks and a storage frame, the height limiting blocks are arranged on two sides of the hot plate, the hot plate is placed on the storage frame, and the prepressing-shaped plate is placed on the hot plate for hot pressing, thickness setting and molding.

Preferably, the hot pressing unit is provided with two groups of hot pressing modules, and each group of hot pressing modules comprises the hot plate, the height limiting block and the storage rack.

The pre-pressed and shaped plate is respectively conveyed to each group of hot pressing modules through the branch conveying belt to be subjected to hot pressing and forming, and the two groups of hot pressing modules can be operated in parallel, so that the processing efficiency is further improved.

Has the advantages that: compared with the prior art, the invention has the following remarkable advantages:

(1) the plate processing method improves the strength of the plate and the stability of the internal structure, and does not need to lay a reinforcing material layer; the density of the processed plate is uniform, the deformation and internal air holes of the plate are reduced, and the edge of the plate is not easy to damage; the plate is of a single-layer structure, so that the processing steps are simplified, and the processing period is shortened; the hot press molding can effectively reduce the water content of the plate, so that the plate is more widely applied; the production cost is reduced, and the labor is saved.

(2) The plate processing equipment can simultaneously process a plurality of plates, and can further improve the processing efficiency through parallel processing of two groups of hot pressing modules.

Drawings

FIG. 1 is a schematic view of a method of processing a sheet material according to the present invention;

FIG. 2 is a schematic structural view of an exemplary hot-pressing unit of the present invention;

fig. 3 is a schematic diagram of a prior art method for manufacturing a plate material requiring a glass fiber web.

Detailed Description

The technical scheme of the invention is further explained by combining the attached drawings.

Example 1: the invention relates to a processing method of an inorganic cementing material plate

As shown in fig. 1, the processing method of the inorganic cementitious material sheet of the present invention specifically comprises the following steps:

(1) pre-treating the template: installing the template 1 evenly coated with the release agent on a conveyor belt 2;

(2) spreading and pre-pressing: the conveyor belt 2 conveys the template 1 pretreated in the step (1) to the position below a feed opening 3, releases slurry (the paving thickness is 10mm for example), rolls the template through a compression roller 4, and then preferably scrapes the template through a scraper 5 (one skilled in the art can also think that the prepressing is finished in other ways besides the compression roller in the prepressing process);

(3) hot pressing: and (3) conveying the plates subjected to the pre-pressing in the step (2) to a hot-pressing unit 6 for hot pressing, thickness setting and forming, wherein the hot-pressing unit processes 15 plates at the same time, and the hot-pressing temperature is, for example: 65 ℃ and hot pressing times are, for example: for 3 minutes, the sheet forming thickness is, for example: 8mm (i.e., the ratio of the paving thickness to the forming thickness is 1.25: 1);

(4) cutting, maintaining, finishing and grooving.

Example 2: the invention relates to a processing device of inorganic gelled material plates

The processing equipment of the inorganic cementing material plate comprises a paving unit, a prepressing unit and a hot pressing unit 6, wherein the three operation units are connected through a conveyor belt 2, and the paving unit comprises a group of feed inlets 3; the pre-pressing unit comprises a press roll 4 and a scraping member 5. As shown in fig. 2, the hot pressing unit 6 includes a hot plate 61, a height limiting block 62 and a storage rack 63, the hot plate 61 is placed on the storage rack 63, the height limiting block 62 is installed on two sides of the hot plate 61, the hot plate 61 is placed on the storage rack 63, and the pre-pressed and shaped plate is placed on the hot plate 61 for hot pressing, thickness setting and forming.

Comparative example 1: processing method of conventional inorganic cementitious material plate

As shown in fig. 3, the processing method of the conventional inorganic cementitious material sheet is specifically as follows:

(1) pre-treating the template: installing the template on a conveyor belt, and uniformly coating a release agent;

(2) processing the first layer: conveying the template pretreated in the step (1) to the position below a first charging hole by a conveying belt, releasing the surface slurry, paving an isolation layer material on the surface slurry by a first paving roller, pressing by a first press roller, and then leveling by a first scraper;

(3) processing the second layer: conveying the first layer of plate processed in the step (2) to the position below a second charging hole by a conveying belt, releasing the medium size, paving an isolating layer material above the medium size by a second paving roller, pressing by a second pressing roller, and then leveling by a second scraper;

(4) processing a third layer: conveying the two layers of plates processed in the step (3) to the position below a third charging hole by a conveying belt, releasing a sand polishing material, and then leveling by a third scraper;

(5) cutting: conveying the three layers of plates processed in the step (4) to a cutting unit by a conveying belt, and cutting the plates into standard plates;

(6) and (5) maintenance: performing primary curing, demolding and secondary curing on the standard plate processed in the step (5);

(7) and (6) trimming and grooving.

Compared with the conventional processing method of the inorganic cementing material plate in the comparative example 1, the processing method of the invention only adds a layer of slurry without laying a reinforcing material layer, can achieve the required plate strength, and improves the strength of the plate and the stability of the internal structure; the processing steps are simplified, and the processing period is shortened; can also effectively reduce the water content of the plate and ensure that the plate has wider application. In addition, the processing equipment can process a plurality of plates simultaneously, and can also process the plates in parallel through two groups of hot pressing modules, so that the processing efficiency is obviously improved.

Claims (10)

1. The processing method of the inorganic cementing material plate is characterized by comprising the following steps:

(1) spreading materials: a layer of slurry is injected into the template;

(2) pre-pressing: pre-pressing and shaping the slurry filled in the step (1);

(3) hot pressing: and (3) hot-press forming the plate pre-pressed and shaped in the step (2).

2. The processing method of the inorganic cementing material plate as claimed in claim 1, wherein the hot pressing temperature in step (3) is 45-85 ℃ and the hot pressing time is 3-5 minutes.

3. The method for processing inorganic cementitious material sheet as claimed in claim 1, wherein step (3) processes 15 sheets at the same time.

4. The method for processing the inorganic cementitious material plate as claimed in claim 1, wherein the ratio of the thickness of the paving material in the step (2) to the forming thickness of the plate in the step (3) is 1.25: 1-1.45: 1.

5. the method for processing inorganic cement boards as claimed in claim 1, wherein step (1) is carried out by adding slurry of inorganic material powder.

6. The method for processing inorganic cementitious material as claimed in claim 5, wherein the slurry is formed by magnesium/calcium cementitious material.

7. The method for processing inorganic cementitious material board as claimed in claim 5, characterized in that the water content of the slurry is not more than 60%.

8. The method for processing the inorganic cementitious material plate as claimed in claim 1, wherein the step (2) is to perform pre-pressing and shaping on the slurry injected in the step (1) by using a compression roller.

9. The utility model provides a processing equipment of inorganic cementitious material panel, its characterized in that contains stone unit, pre-compaction unit and hot pressing unit (6), wherein, stone unit contains a set of charge door (3), hot pressing unit (6) contain hot plate (61), limit for height piece (62) and storage frame (63), and limit for height piece (62) are installed in hot plate (61) both sides, and hot plate (61) are placed on storage frame (63), and the panel of pre-compaction design is placed and is carried out hot pressing, decide thick and shaping on hot plate (61).

10. The processing equipment of inorganic cementitious material board as claimed in claim 9, characterised in that the hot pressing unit (6) comprises two sets of hot pressing modules, each set of hot pressing modules comprising the hot plate (61), height limiting block (62) and storage rack (63).

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